CN211770594U - Multistage integrated form composite filter core - Google Patents

Abstract

The utility model discloses a multistage integrated form composite filter element, including the filter core body that has the filter core head, the overhead raw water inlet A, check valve P, water purification apopore D, waste water outlet U and reverse osmosis membrane water inlet R that is equipped with of filter core, the filter core body includes shell, outer sleeve, reverse osmosis membrane and the central barrel of from the outside-in nested arrangement in proper order, be equipped with mutual isolation's leading filter core unit and rearmounted filter core unit in the central barrel respectively, raw water inlet A communicates with water purification apopore D through leading filter core unit, water purification apopore D just links to each other through the water inlet of water intaking valve and outside booster pump as the supply port of water purification delivery port T and outside booster pump. The utility model has the advantages of small in size, compact structure, occupation space are few, installation and maintenance convenient and fast, and water intaking valve, outside booster pump are in the rear end of leading filter core, and particulate matter impurity that this kind of design can effectual interception raw water effectively prevents to block up the water intaking valve.

Description

A multi-stage integrated composite filter element

technical field

The utility model relates to a filter element for a water purifier, in particular to a multi-level integrated composite filter element.

Background technique

The filter element of the water purifier generally includes various combinations of filter elements. For example, the filter element of the water purifier using a reverse osmosis membrane generally includes a pre-filter element, a reverse osmosis membrane filter element and a rear-mounted filter element. The pre-filter element is the front end of the water purifier. Pretreatment, filtration and purification, and the rear filter element is used as the end of the water purifier to further purify the water and improve the taste. However, since the structures of the filter elements at all levels are independent of each other, the water purifier is bulky, not compact enough, and occupies a large volume. Therefore, how to realize the integration of the filter element structure of the water purifier using the reverse osmosis membrane has become a key technical problem to be solved urgently.

Utility model content

The technical problem to be solved by the present utility model: aiming at the above-mentioned problems of the prior art, a multi-stage integrated composite filter element is provided. It is compact, takes up less space, and has the advantages of convenient and quick installation and maintenance. The inlet valve and external booster pump are located at the rear end of the pre-filter. This design can effectively intercept the particulate impurities in the raw water and effectively prevent the inlet valve from being blocked.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is:

A multi-stage integrated composite filter element includes a filter element body with a filter element head, and the filter element head is provided with a raw water inlet A, a one-way valve P, a clean water outlet D, a waste water outlet U and a reverse osmosis membrane inlet. The nozzle R, the filter element body includes a shell, an outer sleeve, a reverse osmosis membrane and a central cylinder that are nested in sequence from the outside to the inside. , the raw water inlet A is communicated with the clean water outlet D through the pre-filter unit, and the clean water outlet D is used as the clean water outlet T and the water supply port of the external booster pump and is pressurized by the water inlet valve and the outside. The water inlet of the pump is connected, the water inlet R of the reverse osmosis membrane is connected to the water outlet of the external booster pump, the water inlet R of the reverse osmosis membrane is connected with the water inlet side of the reverse osmosis membrane, and the pure water of the reverse osmosis membrane The water outlet is communicated with the water inlet side of the check valve P through the rear filter element unit, and the waste water outlet of the reverse osmosis membrane is communicated with the waste water outlet U.

The front filter unit includes a front upper end cover, a front filter element, a front lower end cover and a front sleeve, and the front filter element is clamped and arranged between the front upper end cover and the front lower end cover and inserted in the front end cover. In the front sleeve, the front upper end cover is provided with a water inlet B and an inner hole, the front filter element is tubular and a cavity C is formed between the outer wall and the inner wall of the front sleeve, and the raw water inlet A through the passage on the filter head body, the water inlet B, and the cavity C are sequentially connected to form the water inlet side passage of the pre-filter element, and the central pipe G of the pre-filter element and the water outlet hole D are connected to form the water outlet of the pre-filter element side access.

The front sleeve is provided with a blind hole with an opening close to one side of the filter element head, and the front filter element and the front lower end cover are all arranged in the blind hole of the front sleeve.

The rear filter element unit includes a rear upper end cover, a rear filter element, a rear lower end cover and a rear sleeve, and the rear filter element is clamped and arranged between the rear upper end cover and the rear lower end cover and inserted in the rear. In the rear sleeve, the rear sleeve is inserted and fixed in the end of the central cylinder away from the filter head, and the rear sleeve has a water inlet L that communicates with the pure water outlet of the reverse osmosis membrane, so the The rear upper end cover is provided with a cavity J and a water outlet K communicated with the central pipe H of the rear filter element, the cavity J, the water outlet K, the central cylinder and the outer wall of the front filter element unit. 1. The cavity Y of the filter head is communicated with the water inlet side of the check valve P, and the filter head is provided with a pure water outlet S on the water outlet side of the check valve P.

A cavity E is formed between the inner wall of the outer sleeve and the outer wall of the reverse osmosis membrane, the filter head is provided with a water inlet hole Q and a waste water hole N, and the cavity E passes through the water inlet hole Q and the reverse osmosis membrane. The water inlet R is connected, and a cavity V is formed between the inner wall of the reverse osmosis membrane and the outer wall of the central cylinder, and the central cylinder is provided with a water inlet M that is communicated with the cavity V. The pure water outlet of the reverse osmosis membrane is communicated with the inlet hole L of the rear filter element unit, and a cavity W is provided between the top of the reverse osmosis membrane and the filter head as the waste water outlet through the waste water hole N and the waste water outlet. U is connected.

A high-pressure pure water chamber F is arranged between the inner wall of the casing and the outer wall of the outer sleeve, and the water inlet M and the high-pressure pure water chamber F communicate with each other through a one-way valve X installed on the central cylinder.

The filter head is also provided with a waste water hole N1, or a waste water valve, or a waste water plug, or a waste water proportional valve, which connects the waste water outlet U and the water inlet side of the external booster pump.

The filter head is also provided with a waste water hole N2 for directly discharging waste water, or a waste water valve, or a waste water plug, or a waste water proportional valve.

Compared with the prior art, the utility model has the following advantages:

1. The filter element body of the present utility model comprises a shell, an outer sleeve, a reverse osmosis membrane and a central cylinder which are nested in sequence from the outside to the inside. The three-in-one permeable membrane and the rear filter element have the advantages of small size, compact structure, less space occupation, and convenient and quick installation and maintenance.

2. The utility model is a multi-stage integrated composite filter element. The water inlet valve and the external booster pump are at the rear end of the front filter element. This design can effectively intercept the particulate impurities in the raw water and effectively prevent the water inlet valve from being blocked.

3. If the utility model needs to do double water outlet, that is, when a piece of purified water (water filtered and purified by the pretreatment filter element) is connected to the faucet (as domestic water) from the pre-treatment filter element, the utility model can be used mechanically. The faucet does double water outlet (relying on the natural power of the raw water), that is, manually opening or closing the handle of the mechanical faucet can control the on-off of the raw water.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of an embodiment of the present invention.

FIG. 2 is a schematic diagram of a three-dimensional exploded structure of an embodiment of the present utility model.

3 is a schematic cross-sectional structural diagram of an embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view of a flow channel structure according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of the end surface structure of the filter element head according to the embodiment of the present invention.

6 is a schematic cross-sectional structural diagram of a filter head according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a water circuit principle according to an embodiment of the present invention.

Detailed ways

As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6 and FIG. 7, the multi-stage integrated composite filter element of this embodiment includes a filter element body 2 with a filter element head 1, the filter element The head 1 is provided with a raw water inlet A, a one-way valve P, a clean water outlet D, a waste water outlet U and a reverse osmosis membrane inlet R, and the filter element body 2 includes a shell 21, which is sequentially nested from the outside to the inside. The outer sleeve 22, the reverse osmosis membrane 23 and the central cylinder 24 are respectively provided with a pre-filter unit 3 and a rear-filter unit 4 which are isolated from each other, and the raw water inlet A passes through the pre-filter unit. The unit 3 is communicated with the clean water outlet D, which serves as the clean water outlet T and the water supply port of the external booster pump and is connected to the water inlet of the external booster pump through a water inlet valve. The reverse osmosis The membrane water inlet R is connected to the water outlet of the external booster pump, the reverse osmosis membrane water inlet R is communicated with the water inlet side of the reverse osmosis membrane 23, and the pure water outlet of the reverse osmosis membrane 23 passes through the rear filter element unit 4 It communicates with the water inlet side of the one-way valve P, and the waste water outlet of the reverse osmosis membrane 23 communicates with the waste water outlet U.

Referring to Figure 6 and Figure 7, this embodiment is a multi-stage integrated composite filter element, and the water inlet valve and external booster pump are at the back end of the pre-filter element. This design can effectively intercept particulate impurities in the raw water and effectively prevent Block the water inlet valve. The filter head 1 is provided with a clean water outlet hole T that communicates with the clean water outlet hole D, and a detachable plug is provided at the clean water outlet hole T.

As shown in FIGS. 2 , 3 , 4 , 5 , 6 and 7 , the pre-filter unit 3 includes a front upper end cover 31 , a front filter element 32 , a front lower end cover 33 and a front sleeve 34 , The front filter element 32 is clamped and arranged between the front upper end cover 31 and the front lower end cover 33 and inserted into the front sleeve 34. The front upper end cover 31 is provided with a water inlet B and an inner hole. 32 is tubular and a cavity C is formed between the outer wall and the inner wall of the front sleeve 34. The raw water inlet A is connected to the water inlet of the pre-filter 32 through the passage on the body of the filter element 1, the water inlet B and the cavity C in turn. In the side passage, the central pipe G of the pre-filter element 32 communicates with the purified water outlet D to form a water outlet side passage of the pre-filter element 32 .

As shown in FIG. 2 and FIG. 3 , the front sleeve 34 is provided with a blind hole with an opening close to one side of the filter element head 1 , and the front filter element 32 and the front lower end cover 33 are all arranged in the blind hole of the front sleeve 34 middle.

As shown in Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7, the rear filter element unit 4 includes a rear upper end cover 41, a rear filter element 42, a rear lower end cover 43 and a rear sleeve 44, The rear filter element 42 is clamped and arranged between the rear upper end cover 41 and the rear lower end cover 43 and is inserted into the rear sleeve 44 . The rear sleeve 44 is inserted and fixed in the central cylinder 24 away from the filter element head 1 One end of the rear sleeve 44 is provided with a water inlet L which communicates with the pure water outlet of the reverse osmosis membrane 23, and the rear upper end cover 41 is provided with a cavity J and a central pipe H that communicate with the rear filter element 42. The water outlet K, the cavity J, the water outlet K, the cavity I between the central cylinder 24 and the outer wall of the front filter element unit 3, the cavity Y of the filter element head 1 and the water inlet side of the check valve P are connected, and the filter element head is connected. 1, there is a pure water outlet S on the water outlet side of the check valve P.

As shown in Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7, a cavity E is formed between the inner wall of the outer sleeve 22 and the outer wall of the reverse osmosis membrane 23, and the filter head 1 is provided with a water inlet hole Q and the waste water hole N, the cavity E communicates with the water inlet R of the reverse osmosis membrane through the water inlet hole Q, a cavity V is formed between the inner wall of the reverse osmosis membrane 23 and the outer wall of the central cylinder 24, and the central cylinder 24 is provided with The water inlet M communicated with the cavity V, the water inlet M is communicated with the water inlet L of the rear filter element unit 4 as the pure water outlet of the reverse osmosis membrane 23, and between the top of the reverse osmosis membrane 23 and the filter head 1 A cavity W is provided as a waste water outlet, which is communicated with the waste water outlet U through the waste water hole N.

As shown in Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7, between the inner wall of the casing 21 and the outer wall of the outer sleeve 22 is a high pressure pure water chamber F, a water inlet M and high pressure pure water The cavities F communicate with each other through a one-way valve X installed on the central cylinder 24 . The high-pressure pure water chamber F is used for soaking in pure water and flushing the reverse osmosis membrane 23 under the control of the one-way valve X, thereby effectively prolonging the service life of the reverse osmosis membrane 23 .

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the filter element head 1 is also provided with a waste water hole N1 (or waste water hole N1) which connects the waste water outlet U and the water inlet side of the external booster pump. valve, or waste plug, or waste water proportional valve). Undoubtedly, as an optional component, the waste water hole N1 can also be arranged on the outside of the multi-stage integrated composite filter element as required.

As shown in Figure 2, Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7, the filter head 1 is also provided with a waste water hole N2 (or waste water valve, or waste water plug, or waste water proportional valve for directly discharging waste water) ), the waste water hole N2 communicates with the cavity W. Undoubtedly, as an optional component, the waste water hole N2 can also be arranged on the outside of the multi-stage integrated composite filter element as required.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (8)

1. A multi-stage integrated composite filter element, characterized in that it comprises a filter element body (2) with a filter element head (1), and the filter element head (1) is provided with a raw water inlet A, a one-way valve P, The clean water outlet D, the waste water outlet U and the reverse osmosis membrane water inlet R, the filter element body (2) comprises a casing (21), an outer sleeve (22), a reverse osmosis membrane (21), an outer sleeve (22), a reverse osmosis membrane ( 23) and a central cylinder (24), the central cylinder (24) is respectively provided with a pre-filter unit (3) and a rear filter unit (4) which are isolated from each other, and the raw water inlet A passes through the pre-filter unit (3). The filter element unit (3) is communicated with the clean water outlet D, which serves as the clean water outlet T and the water supply port of the external booster pump and is connected with the water inlet of the external booster pump through the water inlet valve, so The water inlet R of the reverse osmosis membrane is connected to the water outlet of the external booster pump, and the water inlet R of the reverse osmosis membrane is communicated with the water inlet side of the reverse osmosis membrane (23), and the pure water of the reverse osmosis membrane (23) exits. The water outlet is communicated with the water inlet side of the check valve P through the rear filter element unit (4), and the waste water outlet of the reverse osmosis membrane (23) is communicated with the waste water outlet U. 2. The multi-stage integrated composite filter element according to claim 1, wherein the pre-filter unit (3) comprises a front upper end cover (31), a pre-filter element (32), a front lower end cover (31). 33) and a front sleeve (34), the front filter element (32) is clamped and arranged between the front upper end cover (31) and the front lower end cover (33) and is inserted into the front sleeve (34) ), the front upper end cover (31) is provided with a water inlet B and an inner hole, the front filter element (32) is tubular and a cavity C is formed between the outer wall and the inner wall of the front sleeve (34) The raw water inlet A is connected to the water inlet side passage of the pre-filter (32) through the passage on the body of the filter head (1), the water inlet B and the cavity C in turn to form the water inlet side passage of the pre-filter (32). The pipeline G and the clean water outlet hole D communicate with each other to form a water outlet side passage of the pre-filter (32). 3 . The multi-stage integrated composite filter element according to claim 2 , wherein the front sleeve ( 34 ) is provided with a blind hole with an opening close to one side of the filter head ( 1 ). The filter element (32) and the front lower end cover (33) are all arranged in the blind hole of the front sleeve (34). 4. The multi-stage integrated composite filter element according to claim 3, wherein the rear filter element unit (4) comprises a rear upper end cover (41), a rear filter element (42), a rear lower end cover (41). 43) and a rear-mounted sleeve (44), the rear-mounted filter element (42) is clamped and arranged between the rear-mounted upper end cover (41) and the rear-mounted lower end cover (43) and inserted into the rear-mounted sleeve (44) ), the rear sleeve (44) is inserted and fixed at the end of the central cylinder (24) away from the filter element head (1), and the rear sleeve (44) is provided with a reverse osmosis membrane (23) The water inlet hole L communicated with the pure water outlet, the rear upper end cover (41) is provided with a cavity J and a water outlet K communicated with the central pipe H of the rear filter element (42), the cavity J , the water outlet K, the cavity I between the central cylinder (24) and the outer wall of the front filter element unit (3), the cavity Y of the filter element head (1) and the water inlet side of the check valve P are communicated, and the filter element The head (1) is provided with a pure water outlet S on the water outlet side of the one-way valve P. 5. The multi-stage integrated composite filter element according to claim 4, wherein a cavity E is formed between the inner wall of the outer sleeve (22) and the outer wall of the reverse osmosis membrane (23), and the filter head (1) A water inlet hole Q and a waste water hole N are provided on it, the cavity E is communicated with the reverse osmosis membrane water inlet R through the water inlet hole Q, and the inner wall of the reverse osmosis membrane (23), the central cylinder (24) A cavity V is formed between the outer walls of the ), the central cylinder (24) is provided with a water inlet M that communicates with the cavity V, and the water inlet M is used as a pure water outlet of the reverse osmosis membrane (23). It is communicated with the inlet hole L of the rear filter element unit (4), and a cavity W is provided between the top of the reverse osmosis membrane (23) and the filter element head (1) as a waste water outlet through the waste water hole N and the waste water outlet. U is connected. 6. The multi-stage integrated composite filter element according to claim 4, wherein a high-pressure pure water chamber F is provided between the inner wall of the casing (21) and the outer wall of the outer sleeve (22). The water hole M and the high-pressure pure water chamber F communicate with each other through a one-way valve X installed on the central cylinder (24). 7. The multi-stage integrated composite filter element according to claim 4, characterized in that, the filter head (1) is further provided with a waste water hole N1 connecting the waste water outlet U and the water inlet side of the external booster pump , or waste water valve, or waste water plug, or waste water proportional valve. 8. The multi-stage integrated composite filter element according to claim 4, wherein the filter head (1) is further provided with a waste water hole N2 for directly discharging waste water, or a waste water valve, or a waste water plug, or Wastewater proportional valve.

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